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  2. .dwg - Wikipedia

    en.wikipedia.org/wiki/.dwg

    DWG (from drawing) is a proprietary [3] binary file format used for storing two- and three- dimensional design data and metadata.It is the native format for several CAD packages including DraftSight, AutoCAD, ZWCAD, IntelliCAD (and its variants), Caddie and Open Design Alliance compliant applications.

  3. Precast concrete - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete

    Prestressing is a technique of introducing stresses into a structural member during fabrication and/or construction to improve its strength and performance. This technique is often employed in concrete beams, columns, spandrels, single and double tees, wall panels, segmental bridge units, bulb-tee girders, I-beam girders, and others.

  4. Autoclaved aerated concrete - Wikipedia

    en.wikipedia.org/wiki/Autoclaved_aerated_concrete

    AAC blocks on a residential house construction site in Russia. AAC is a concrete-based material used for both exterior and interior construction. [ 23 ] One of its advantages is quick and easy installation because the material can be routed , sanded, or cut to size on-site using a hand saw and standard power tools with carbon steel cutters.

  5. Technical drawing - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing

    Whereas in a conventional hand drawn technical drawing, if a mistake is found, or a modification is required, a new drawing must be made from scratch, the 2D CAD system allows a copy of the original to be modified, saving considerable time. 2D CAD systems can be used to create plans for large projects such as buildings and aircraft but provide ...

  6. Process flow diagram - Wikipedia

    en.wikipedia.org/wiki/Process_flow_diagram

    A process flow diagram (PFD) is a diagram commonly used in chemical and process engineering to indicate the general flow of plant processes and equipment. The PFD displays the relationship between major equipment of a plant facility and does not show minor details such as piping details and designations.

  7. Multifamily residential - Wikipedia

    en.wikipedia.org/wiki/Multifamily_residential

    Plattenbau (East German) / Panelák (Czech, Slovak): a communist-era tower block that is made of slabs of concrete put together. Q-type: townhouse built mainly in housing estates in the UK beginning in the late 20th century. The houses are arranged in blocks of four with each house at a corner of the block. Similar to the earlier cluster house ...

  8. ISO 10303-21 - Wikipedia

    en.wikipedia.org/wiki/ISO_10303-21

    ISO 10303 can represent 3D objects in computer-aided design (CAD) and related information. Due to its ASCII structure, a STEP-file is easy to read, with typically one instance per line. The format of a STEP-file is defined in ISO 10303-21 Clear Text Encoding of the Exchange Structure .

  9. Accropode - Wikipedia

    en.wikipedia.org/wiki/Accropode

    The Accropode is a single-layer artificial armour unit developed by Sogreah in 1981. Accropode concrete armour units are applied in a single layer. Ecopode (1996) The Ecopode armour unit with a rock-like appearance was developed by Sogreah to enhance the natural appearance of concrete armourings above low water level.